Male Hair Restoration Before & After with PRF and GHK Cu DAILY SPOTLIGHT GHK Cu 200mg from Peptide Partners. GHK Cu is the copper tripeptide biohackers reach for when skin, scalp, and wound repair all need a single upstream signal. Endogenous in healthy human Amazon.com: Skin Perfection Copper Peptide Serum GHK CU 1% for Face & Hair Copper Peptides for Skin, Hair, & Scalp 1% Blue Liquid for Face, Neck, Body, Scalp Multi Use Serum Booster with GHK Cu Peptide Therapy: The Definitive Clinical Guide to Gene Modulation, Protocols, and Efficacy